The contract is for the rehabilitation and upgrade of filters 5-8 at the Main Street Water Treatment Plant in Yuma, AZ. The work includes the replacement of pneumatic actuators and associated valves with electric motor actuators and valves, rebuild of four existing filters, and associated mechanical, structural, electrical, instrumentation, and other appurtenant and related work. The contract has a duration of 210 days and a contract price that is not specified in the document. The contractor is required to submit a schedule of values and a cash flow projection, and to provide guarantees and warranties for the work.